We went with Azure because it was the sort of “obvious” direction for a non-tech enterprise organisation that was already heavily windowsy and using office365, but what Microsoft and Amazon sell to enterprises is support. AWS didn’t start out so well here in Europe, which is what gave Azure the chance to catch up, but once Amazon caught on, they became more compliant with European legislation than Microsoft is. Things like guaranteeing that every employee that comes near your data is an European citizen, is one area where AWS is still better than Azure, but basically what they do that Google doesn’t, is that they listen and adopt to the needs of the trillion dollar industry.
When Teams rolled out as a new feature in Enterprise 365, as available to everyone, our techies called Seattle (I can’t spell redmund) and a few days later it was possible to not have it auto-available for everyone. When we had issues with Google education, and Google education was actually Google’s best attempt at being supportive of enterprise, we had to talk with a chatbot and eventually had to physically drive to Google Denmark to annoy someone to get real support because our sales rep was on vacation.
I’m not sure if you know this, but a major part of selling IT to enterprise is to sell the CTOs the ability to say “yes, email is down, but our guys are working directly with the people at Amazon/Microsoft headquarters and they are calling us with updates every 30 minutes.” or “yes our servers are in Ireland, but some of our best techies have gone and physically inspected them with the EY consultants and our DPO firm and it was completely GDPR compliant”, and all the other stuff you get to do when you make the companies billions.